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Tetrasodium Pyrophosphate Food Grade

Molecular Formula:Na4P2O7 ;Na4P2O7.10H2O
Molecular Weight:265.90;446.10
CAS NO.:7722-88-5(Anhydrous);13472-36-1(Decahydrate)
Standard executed:GB 25557-2010

Appearance:White powder or crystal.. 
Usage: Used as acidity-adjuster,emulsifier,expanding,expanding,complexing and water retaining agent in food industry. 
Packaging: 25kg,50kg,1000kg bags or according to customer's demand.

■Specification

Item Food Grade
Main contents (Na4P2O7.10H2O) w/% ≥ 98.0
Main contents (Na4P2O7),w/%  96.5-100.5
Ortho phosphates  Pass
PH value(10g/L solution) 9.9-10.7
Arsenic(as As) ≤ 3
Fluoride(As F) ≤ 50
Heavy metals(As Pb) ≤ 10
Lead(as Pb) w/% ≤ 4
Water insoluble ≤ 0.2
Loss of ignition (Na4P2O7.10H2O) w/% 38.0-42.0
(Na4P2O7),w/% ≤ 0.5

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